Fetching pdf AccessPermission

[Mark Goldstein <kv...@att.net>]

I am trying to programmatically recognize a pdf file that has an owner password and that requires the password in order for a viewer to open the file.

This sequence of code does not work:

		  PDDocument pd = PDDocument.load(filePath);
		  Boolean password = pd.isEncrypted(); // returns TRUE
		  SecurityHandler security = pd.getSecurityHandler(); // returns NULL -- WHY?
		  AccessPermission ap = pd.getCurrentAccessPermission();
		  Boolean canExtract = ap.canExtractContent(); // returns TRUE

An earlier thread (Re: Fwd: PDF Permissions) implies that if the document has a non-null SecurityHandler then canExtract would be FALSE, and so in this example I am retrieving the owner permissions.

Why is this the case? Am I missing a step in attempting to fetch the user permissions?